import java.util.Scanner;

/**
 * ClassName Practice
 * Description TODO
 * Author Yanyan
 * Date 2025/11/9 16:24
 * Version 1.0
 */
public class Practice {

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        double height = scanner.nextDouble();
        double weight = scanner.nextDouble();

        double BMI = weight / (height * height);

        if(BMI < 18.5) {
            System.out.println("偏瘦");
        } else if(18.5 <= BMI && BMI < 20.9) {
            System.out.println("苗条");
        } else if(20.9 <= BMI && BMI <= 24.9) {
            System.out.println("适中");
        } else {
            System.out.println("偏胖");
        }

    }

    public static void main5(String[] args) {
        Scanner console = new Scanner(System.in);
        int price = console.nextInt();
        int cost = 0;

        if(500 > price && price >= 100) {
            cost = (int) (price * 0.9);
        } else if(2000 > price && price >= 500) {
            cost = (int) (price * 0.8);
        } else if(5000 > price && price >= 2000) {
            cost = (int) (price * 0.7);
        } else if(price >= 5000) {
            cost = (int) (price * 0.6);
        } else {
            cost = price;
        }


        System.out.println(cost);
    }

        public static void main4(String[] args) {
            Scanner scanner = new Scanner(System.in);
            int a = scanner.nextInt();
            int b = scanner.nextInt();

            a = a ^ b;
            b = a ^ b;
            a = a ^ b;


            System.out.println(a+" "+b);
        }



        public static void main3(String[] args) {
            Scanner scanner = new Scanner(System.in);
            double d= scanner.nextDouble();

            int i = (int) (d + 0.5);


            System.out.println(i);
        }



        public static void main2(String[] args) {
            Scanner scanner = new Scanner(System.in);
            int a = scanner.nextInt();
            int b = scanner.nextInt();
            scanner.close();

            if(a > b) {
                System.out.print((a + b) + " " + (a - b) + " "
                        + (a * b) + " " + (a / b) + " " + (a % b));
            } else {
                System.out.print((b + a) + " " + (b - a) + " "
                        + (b * a) + " " + (b / a) + " " + (b % a));
            }


        }



        public static void main1(String[] args) {
            Scanner scanner = new Scanner(System.in);
            double d = scanner.nextDouble();
            System.out.println(Practice.typeConversion(d));
        }
        public static int typeConversion(double d){

            int a = (int)d;
            return a;

        }
    }

